2011 PORSCHE CAYENNE trailer

Making headway without getting in a spin.
An approach we thoroughly support.
Chassis.
outside rear wheel which supports
the steering motion of the car,
thereby improving its cornering
dynamics.
At slow and medium speeds, PT V
Plus considerably enhances agilit y
and steering precision. At high
speeds, during fast cornering and
under wheel spin, the electron-
ically controlled
rear differential
ensures additional stabilit y. Also
on variable-grip surfaces, in the
wet and on snow, PT V Plus –
combined with Porsche Traction
Management (PTM) and Porsche
Stabilit y Management (PSM) –
provides a major contribution to
active safety.In of f-road terrain, PT V Plus
reduces wheel spin on the rear
wheels – even when towing heav y
trailer loads. The electronically
controlled rear dif ferential can
be fully locked using the of f-road
control on the centre console.
Optional for the Cayenne,
Cayenne S and Cayenne Turbo.
Porsche Active Suspension
Management (PASM).
PASM is an electronic damping
control system. It of fers con-
tinuous adjustment of individual
damping forces based on current
road conditions and driving st yle.
During performance driving or
heav y of f-road use, there is an
increased tendency for the body
to sway. PASM prevents this from
happening, thereby improving
stabilit y and occupant comfort.
PASM has three setup modes:
‘Comfort ’, ‘Normal’ and ‘Sport ’. Whichever one you select, the
system uses a series of sensors
to monitor the movement of the
body. It also gathers data on
lateral acceleration, steering
angle, brake pressure and engine
torque and modifies the damping
force on each individual wheel
in accordance with the selected
mode.
PASM remains active at all times.
It automatically adapts to the
prevailing driving conditions,
enabling greater car control and
improving comfort and safet y.
Optional for the Cayenne,
Cayenne Diesel, Cayenne S
and Cayenne S Hybrid.
Standard on the Cayenne
Turbo: air suspension with
PASM.
yaw velocit y and vehicle speed,
PT V Plus optimises steering re-
sponse and precision by applying
brake pressure to the left or
right rear wheel, as required.
Specifically, this means that when
entering a corner at high speed,
moderate brake pressure is
applied to the inside rear wheel.
This transfers drive torque to the
Porsche Torque Vectoring Plus
(PTV Plus).
A system for enhancing driving
dynamics and stabilit y, PT V Plus
of fers variable distribution of
engine torque to the rear
wheels
and electronically con trolled
rear differential. Depending
on the steering angle, steering
speed, throt tle pedal position,
Porsche Active Suspension Management (PASM)
50 · Drive systems and chassis | ChassisDrive systems and chassis | Chassis · 51
Porsche Torque Vectoring Plus (PT V Plus)

All Cayenne models have internal-
ly vented discs all round, ensuring
consistent performance during
heav y use. The front disc dimen-
sions (diameter/thickness) are
350 mm/34 mm on the Cayenne
and Cayenne Diesel, 360 mm/
36 mm on the Cayenne S and
Cayenne S Hybrid, and 390 mm/
38 mm on the Cayenne Turbo.All models have six-piston
monobloc aluminium brake
calipers at the front and four-
piston equivalents at the rear.
The calipers are black on the
Cayenne and Cayenne Diesel
and silver on the Cayenne S
and Cayenne S Hybrid. On the
Cayenne Turbo, they feature a
striking red paint finish.
Braking is assisted by a tandem
booster and large brake master
cylinder. Further assistance is
provided by PSM (p. 66).
For greater safet y, the brake pads
are equipped with individual wear
sensors, alerting the driver when
new pads are required.
Electric parking brake.
Manually activated and deactivat-
ed, the electric parking brake
releases automatically as you drive
off.
Automatic hold function.
With the automatic hold function,
you can pull away on the flat or a
slope without ever rolling back.
The system automatically detects
when the vehicle has come to a
halt on an uphill gradient. PSM then
maintains the brake pressure at all
four wheels for a brief period to
prevent the vehicle from moving in
the opposite direction.
Braking systems.
Porsche brakes are renowned
worldwide as the benchmark
in performance and durabilit y.
Equipped with larger and more
powerful braking systems, the
Cayenne models continue this
tradition by offering excellent
deceleration – even when the
car is fully laden with five adult
occupants, a full complement
of luggage and a braked trailer
load of up to 3,500 kg (Cayenne
with manual gearbox: 2,700 kg).
Outstanding brake performance.
To the point.
Standard braking system
(Cayenne/Cayenne Diesel) Standard braking system
(Cayenne S/Cayenne S Hybrid) Standard braking system (Cayenne Turbo)
Safety and environment | Safet y · 63
62 · Safety and environment | Safet y

PSM has three additional func-
tions that help reduce braking
distances. If the throt tle pedal
is released suddenly, PSM
automatically readies the braking
system. The pressure in the
brake lines is marginally increased,
bringing each of the pads into
light contact with the correspond-
ing disc. If the driver goes on
to apply the brakes, the calipers
respond more quickly and the
braking distance is reduced. In an emergency stop – i.e. when
the pressure on the brake pedal
exceeds a certain threshold –
the brake assist function uses the
PSM hydraulics to apply maximum
braking force at all four wheels.
For added safet y, the system
also readies the brakes whenever
a decreasing distance to the
vehicle in front is detected. The
optional adaptive cruise control
and PSM interact to prefill the
brakes.
Even if adaptive cruise control is
inactive, the system registers the
speed of the vehicle in front and
automatically readies the braking
system. In addition, the system
alerts the driver to the decreasing distance by briefly tugging on
the brakes.
PSM also features a trailer
stabilisation function – for a
significant contribution to car
and trailer safet y.
Within the laws of physics, it
compensates for load transfer
caused by throt tle and brake
inputs up to the maximum degree
of lateral acceleration. It also en-
hances the car’s driving dynamics
and directional stabilit y when
accelerating on inconsistent road
surfaces.
Other features include a special
control strategy in the ABS
for braking on loose surfaces.
By briefly locking the wheels, a wedge is formed ahead of each
t yre which provides additional
purchase to help slow the car,
e.g. on gravel or snow.
For a more involving driving
experience, PSM can also be
disabled, but remains active in
the background.
Standard on all Cayenne
models.
accele ration of the car. Using
this information, it is possible to
calculate the actual direction of
travel at any given moment. If
the car begins to oversteer or
understeer, PSM applies selective
braking on individual wheels to
restore stabilit y. If necessar y,
PSM can also intervene in the
engine management system to
temporarily modif y the amount of
drive transmit ted to the wheels.
Porsche Stability Management
(PSM).
Porsche Stabilit y Management
(PSM) is an electronic control
system that uses a range of
functions – including anti-lock
braking (ABS) – to help stabilise
the vehicle (and trailer, if fit ted)
in hazardous road scenarios.
Throughout each journey, sensors
monitor the direction, speed,
yaw velocit y and lateral
Preparing for the road ahead.
With a little help from PSM.
Safety and environment | Safet y · 67

Porsche Entry & Drive.
With Porsche Entry & Drive, you
can avoid the inconvenience of
using a conventional key.
To enter the car, simply touch the
door handle and the system auto -
matically checks the encrypted
access code on the key in your
pocket. If the code is accepted,
the doors are unlocked and
you can step inside. To start or
stop the engine, simply push
the ignition but ton.When you leave the car, all you
have to do is press a but ton on
the outside of the door handle.
Porsche Entry & Drive then locks
the car, arms the immobiliser
and locks the steering column.
Optional for all Cayenne
models.
Anti-theft protection.
The Cayenne models are all
equipped as standard with an
engine immobiliser and anti-thef t
alarm featuring ultrasonic interior
surveillance.
The alarm circuit includes all four
doors, engine lid, tailgate, rear
screen, interior, ignition and trailer
(if fitted).
Rain sensor.
The front wiper system has t wo
fixed speeds and an automatic
rain sensor function.
Washer fluid is delivered via t wo
heated jets, ensuring uniform
coverage of the entire windscreen
area.
The rear wiper system is designed
for maximum visibilit y in all
conditions.
Sunscreen.
To protect the interior against
direct sunlight, an electrically
operated sunscreen for the rear
side windows is available as an
option. It can also be controlled
from the driver’s seat.
Optional for all Cayenne
models.
Inconspicuous. Unobtrusive. Indispensable.
The immobiliser system works
by automatically communicating
with the vehicle key. If the key
is approved, the engine can be
started as normal.
When the key is removed from the
ignition, the steering column is
automatically locked to provide
additional securit y.
Preparation for Porsche Vehicle
Tracking System (PVTS).
This preparation enables future
installation of the Porsche Vehicle
Tracking System (PV TS) obtain-
able from Porsche Tequipment.
PV TS can be used to locate a
stolen vehicle in 25 EU countries
as well as Norway, Switzerland
and Russia – irrespective of where
you live. The vehicle is not tracked con-
tinually, only when the alarm is
triggered. In the event of vehicle
thef t or manipulation, or if the
loss of the vehicle is reported by
the owner, a silent alarm is auto -
matically triggered. The package
includes a special wiring loom,
higher capacit y bat tery (depend-
ing on vehicle specification) and
tilt sensor for the alarm system.
Optional for all Cayenne
models.Rain sensor
Sunscreen
Comfort and transport | Comfort · 99
98 · Comfort and transport | Comfor t Porsche Vehicle Tracking System (PV TS) uses GPS technology in the event of an alarm

Optional for all Cayenne
models.
Comfort lighting package.
Available as an option for all
Cayenne models, this package
includes dimmable ambient light-
ing in the door panels and roof
console, practical LED reading
lights for the rear passengers,
additional courtesy lights on the exterior mirrors on the driver’s
and front passenger’s side, and a
second 12-volt socket in the rear
centre console.

Optional for all Cayenne
models.
Automatically dimming mirrors.
Another comfort- oriented feature:
automatically dimming exterior
and interior mirrors.
Standard on the Cayenne Turbo.
Optional for all other Cayenne
models.
Cruise control.
Cruise control automatically
regulates the speed of your
vehicle for added driver comfort
on longer journeys. It can be
used at speeds bet ween 30 and
240 km/ h (19 and 149 mph)
and is operated using a but ton
on one of the control stalks. Standard on all Cayenne
models.
Reversing camera.
The reversing camera (only avail-
able in conjunction with PCM)
facilitates reverse parking and
manoeuvring and also assists with
hitching a trailer. Help is provided
in the form of a high - contrast
colour image with dynamic guide-
lines on the PCM screen, which
show the predicted course of
the vehicle based on the current
position of the steering wheel.
Park Assis t.
This parking aid uses an acoustic
signal and front /rear displays to
alert the driver of any obstacles
at the front or rear of the car. Its
sensors are neatly concealed in
the front and rear aprons. The
acoustic signal is supplemented
by a visual warning in the centre
console display which provides
a graphical representation of the
vehicle’s proximit y to obstacles.Standard on the Cayenne Turbo.
Optional for all other Cayenne
models.
Seeing and being seen.
It’s all about having the right technology.
Driver assistance systems.
Reversing camera
Reversing camera display in PCM
Comfor t lighting package
Comfort and transport | Driver assistance systems · 103
102 · Comfort and transport | Driver assistance systems

The st yling of the roof is further
enhanced by a set of three drip
rails included in the package. The
roof rails are required for fitment
of the optional roof transport
system and come in a high -gloss
black finish as part of the mono -
chrome black exterior package.
Only available as a factory-fit ted
option. Optional for all Cayenne
models.
Roof transport system.
Even when the luggage com-
partment is completely full, the
Cayenne has space for more.
In conjunction with the optional
roof rails, the car can be
equipped with a set of lockable
transverse roof bars for all the
usual load- carrying at tachments
from Porsche. The load-bearing
parts are made from aluminium
and enable a maximum roof load
of 100 kg. Load-carrying at tach-
ments are available from Porsche
Tequipment. Optional for all Cayenne
models.
when the car is fully laden. The
partition at taches to one of
t wo easily accessible points on
the rooflining.
Optional for all Cayenne
models.
Roof rails.
The high-qualit y roof rails in alu-
minium blend harmoniously with
the dynamic design of the vehicle.
Loadspace management
system.
This facilit y enables you to parti-
tion the luggage compartment
and secure individual objects dur-
ing transit using a rail system with
sliding telescopic bar, a fixing belt
and four variable lashing eyelets.
A reversible mat protects against
dirt while securing luggage under
braking, etc. The package also
includes a loadspace partition net
which provides additional safet y
Loadspace management system
Towbar systems.
For the largest of loads, you can
choose from t wo towing options:
an electrically deployable towbar
system or a manually detachable
towbar. With the electric system,
the ball neck is retracted at the
push of a but ton and concealed
beneath the rear apron. Both
options have a 13-pin socket and
of fer a maximum braked trailer load of 3,500 kg (2,700 kg on the
Cayenne with manual gearbox)
or an unbraked load of 750 kg,
with a maximum noseweight of
140 kg. Both systems are also
available for
future installation. All
models have a towbar preparation
as standard.
Optional for all Cayenne
models.
Comfort and transport | Transport · 109
108 · Comfort and transport | Transport